W desktop-entry-uses-reserved-category

All reports of desktop-entry-uses-reserved-category for the archive. The extended description of this
tag is:

This desktop entry includes a Reserved Category, one which has a
desktop-specific meaning that has not yet been standardized, but does
not include an OnlyShowIn key. Desktop entries using a Reserved Category
must include an OnlyShowIn key limiting the entry to those environments
that support the category.

The desktop-file-validate tool in the desktop-file-utils package is
useful for checking the syntax of desktop entries.